From 8eb98d51766c144ab1fdf2abf231edf4a83e9d4a Mon Sep 17 00:00:00 2001 From: Peter Oh Date: Mon, 16 Sep 2013 14:21:14 -0700 Subject: [PATCH] usb: gadget: f_mass_storage: reset endpoint driver data when disabled Gadgets endpoint driver data is a criteria to judge that whether the endpoints are in use or not. When gadget gets assigned an endpoint from endpoint list, they check its driver data if the driver data is NULL. If the driver data is not NULL then they regard it as in use. Therefore all of gadgets should reset their endpoints driver data to NULL as they are disabled. Otherwise it causes a leak of endpoint resource. Signed-off-by: Peter Oh Signed-off-by: Felipe Balbi --- drivers/usb/gadget/f_mass_storage.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 313b835..a01d7d3 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2260,10 +2260,12 @@ reset: /* Disable the endpoints */ if (fsg->bulk_in_enabled) { usb_ep_disable(fsg->bulk_in); + fsg->bulk_in->driver_data = NULL; fsg->bulk_in_enabled = 0; } if (fsg->bulk_out_enabled) { usb_ep_disable(fsg->bulk_out); + fsg->bulk_out->driver_data = NULL; fsg->bulk_out_enabled = 0; } -- 2.7.4